Deep-well pump



. CASSISA.

DEEP WELL PUMP.

APPLICATION FILED MAY2s,192o.

Patented Sept. 6, 1921L www gli v Arron/viva www@4 Wl TNE SSE 8 AAJ/af @X STATES SALVATQRE GASSISA, F NEW YGRK, El'. Y..

DEEP-WELL PUMP.

aandoen. y

Application ler May 26,

To all whom t may concern:

Be it known that I, SALVATORE CAssIsA, a subject of the Kin dent of the city of ew York, borough of Manhattan, 'in the county and State of New York, have invented a new and llmproved Deep-Well Pump, of which the following is a full, clear, and exact descriprJlhis invention relates to lpumping apparatus and particularly to a pump for pumping liquids 'from great depths or to great heights, and has for an object to provide an improved construction which will operate in an eilicient manner when raising liquids great distances.

Anotherobject of the invention is to provids a pumping apparatus in which the liftwill add a certain pressure to the air as it,

ing medium 1s compressed air with the parts so arranged that a comparatively low pressure and large volume will 'operate to lift.

liquid to any desired height from a low altitude to a high altitude.

A further object more specifically is the provision of a pumping outt which uses air as the lifting medium, wherein pumps are arranged in such order that each pump the invention.

3 is a detail fragmentary sectionaly view through Fig. 1 on the line 3-3.

Referrin to the accompanying drawings by numera s, 1- indicates a storage tank which is provided with a gage 2 with a relief valve 3. This tank is provided with an outlet pipe 4 having a manually actuated valve therein and a check valve 6 which will permit the air, to ow freely from the tank 1 into the auxiliarypump pasing 7, but will not permit anyback pressure from said casing into the tank. A primer pump 8 is provided adjacent tank 1, which pump is formed with a casing 9 and is provided with a piston 10 operated by any suitable source of power. nlet valves 11 are arranged centrally of the casing 9,'while outlet check valves 12 Specification of Letters Patent of Italy, and a resi- Patented Sept. 6., i921. i920. serial no. esatta and 13 are provided near the ends of the casing whereby the entire structure is arranged as a double acting pump. llt will be evident that any other suitable form of pump may be substituted provided the same will produce the desired pressure in the tank 1. The auxiliary pump 14 is provided with a piston 15 operatedby a piston rod 16, which rod is moved by any suitable power. The pump 14 does not draw' the-air from the atmosphere, but from pipe 4 soL that at the beginning of the power stroke the pressure in the casing 7 will be `approximately the same as in the tank 1. Preferably the pump 7 is of the same power as pump 8 so that at the end of the power stroke or piston 15 the pressure leaving the casing 7 will be approximately twice the pressure in tank 1.

Pipes 17 and 18 are tapped into the casing 7 adjacent the opposite ends thereof so as to receive compressed air from said casing. rlhese pipes are connected to a number of containers 19, 20, 21, 22" and 23 arranged in the well 2A. 'lt' will be noted that the pipe 17 is connected with the upper part of containers 2O and 22, while pipe 18 is connected with the upper part ot containers 19, 21 and 23.- 'll`he\ container 23 is preferably larger than the other containers and is ar-l ranged at the bottom yoi the well24 so that by the action of gravity ,the oil or other liquid in the well will automatically move past the ball valve 25 into' the container so as to lill the same up to the water line 26. A tube 27 extends from the bottom of container 22 downwardly through the upper part 'of container 23 and to a position near the bottom of the container 23 where a suitable ball valve 28 is provided and arranged to freely open when there is an upward pressure in the pipe 27, but to instantly close when there is a downward pressure. It is evident that other forms of valves may be substituted for valves 25 and 28, but for simplicity and ease of operation thesey valves are believed to be preferable. The other containers, namely, 19, 20 and 21 are each provided with a tube V27 provided with a ball valve 28 while the tube 27 extepding downwardly into container 19 is provided witha discharge pipe 29 which may lead to any convenient point.

By this construction and arrangement when the pump is idle oil will move into the container 23 under the action of gravity and as soon as piston 15 moves upwardly air will vbegin to pass through the pipe 18 and-enter 'into the upper part oi containers 19,21 and 23. As this air increases in pressure the oil in these respective containers will be forcedv Yin fact will be reduced to atmospheric pressure by means hereinafter fully described, whereupon there will be no appreciable pressure on top of the oil in the containers19,

21 and 23. However pressure will increase in pipe 17 and consequently inthe containers 20 and 22 whereupon oil from these containers will he forced upwardly into the next higher containers which are in communica tion with pipe 18. When the piston again reverses pipe 17 will exhaust to the atmosphere, while pipe 18 will again besup lied with air under pressure and the action t ereof against the oil in containers 19, 21 and 23 will be repeated. This alternate actionof air in the respective containers will continue as long as piston 15 reciprocates.

It will be observed that the oil at the bottom of the well will have intermittent opportunity of freely iowing into container 23 under Vthe action of gravity and that a comparatively low pressure will be required to elevate the oil even though the depth ofv the well may be several thousandfeet.'

Ordinarily it requires about one atmosphere to raise oil thirty-two feet, and consequently `it will require approximately three atmospheres to raise oil'one hundred,

feet. If sections of pipes 27 are two hundred Vfeet in length or approximately nine atmospheres will easily raise the oil or other liquid being elevated. If desired the air pressure applied to pipes 17 and 18 may be greaterso that the proper volume of air-for the respective containers may be more quickly supplied or a quicker action of oil may be produced.

The invention is shown as arranged in anoil well, but it may be arranged in a mine shaft', or may be arranged on the surface and not only used for elevating oil but may be used for elevating water from mines or for elerating any form of liquid to high altitu es.

Exhaust valve mechanism 30 and 31 are.

provided 'for the casing 7 adjacent each end so as to'exha'ust'the pipes 17 and 18 alternately so as to 'permit oil to {iow in the container 23 and also the oil being elevated to more easily iow in the remaining containers.

In Figs. 2 and 3 this mechanism` is shown f more in detail and is intended to open the opposite ends of the casing 7 to the atmosphere at the end of each compression stroke of the piston 15. Anyl suitable form of mechanism which will accomplish this rewith sai sult may be used, but illustrated which is capable of accomplishinthis result.

' he valve 31 is provided with a casing 32`having a rotary or oscillating valve member 33 positioned therein so that when in open position it will appear as shown in Fig. 1. By a quarter of a turn the valve will be closed. ln order to turn the valve niember33 a valve operating rod 34 is connected to a cross head 35 which is also connected to the valve operating rod 36. Pivotally connected on rod 34 are rack bars 37 and 38, bar 37 having a rack 39 adapted to rotate the ratchet wheel 40 for a quarter of a turn in one direction as lthe piston y15 moves upwardly. A wheel 40 is rigidly seone form has been cured to the valve member 33 so that when the wheelis turned a quarter of a revolution the valve 31 will be closed. When the rack 39 moves downwardly on the return stroke it will slide freely over the ratchet wheel 40 but willnot operate the same. The rack bar 34 is provided with a rack 41 which f operates on the down stroke for opening the the air may freely flow from tankl into lower part of the casing 7.

The valve mechanism 30, rod36 and associated parts are identical with valve mechanism 31, rod 34 and associated parts and therefore will need no additional description, said valve however operating on the opposite end ofthe casing 7. This form of valve mechanism merely to show an operative construction, but it will be understood that any desired form may be used provided it accomplishes the same result.

I claim: y

1. A pump for deep wells comprising a tank; a pump for supplying compressed air to said tank,'a second pump for receiving compressed air from thetank and compressing the sameon each movement of the piston, a 'pipe connected to the opposite ends of said second pump so asto alternately receive compressed air therefrom,

has foeen illustrated l iis and direct it to a discharge point and means for alter tank, a

pump for maintaining air under pressure v in said tank, Va second pump connected with said tank and adapted'to receive air therefrom, a air of discharge pipes associated second pump and adapted torre Leeopea ceive compressed air from said second pump so as to direct the same toa discharge point, said second pump being provided With a piston and a piston rod for further compressing the air taken from said tank before it is discharged out said pipes, and means for opening the opposite end of said second pump to the atmosphere, said last v mentioned means comprising a valvemechanism at each end of said second pump, and means associated with the piston of the pump for alternately. opening and closing said valves,

3. lin a device of the character described the combination'of a Water elevator provided With a plurality of pipes, and means for using air alternately passing through said pipes, of a compressor for alternately forcing compressed air into said pipes, and a valve co-acting with each 'of said pipes for opening the device to the atmosphere @web and simultaneously opening the compressor therefrom, air pipes for supplying air to i said means, and means forl supplying air to said pipes, said means including a valve for each pipe for opening the pipes to the at- Inosphere, a primary air pump, atank for receiving air from said primary air pump, an auxiliary pump connected with said air pipes and with said tank whereby said auxiliary pump receives air from said tank and compresses the same to a higher degree immediately previous to the air discharged in said pipes, said auxiliary pump alternately exhausting simultaneously through the same valves that open said air pipesv to the atmosphere.

sanvaroan cassrs'a. 

